1996 454 Magnum MPI with the VST system<br />Engine # 0F802536 Model # 4454118JT<br /><br />Problem: Hesitates over 50 mph<br /><br />Have taken the Admiral's and Commander's advice and have run the problem to the VST.<br /><br />Checked / Replaced<br />- fuel/water separator filter<br />- bad gas<br />- antisyphon valve<br /><br />I want to replace the O-rings, Diaphragm, Float Kit, and maybe more in my VST. Having trouble finding the kits on the web. <br /><br />Any advice on where, and what to get to rebuild this VST? Lots of parts but no kits.<br /><br />Also, how often does the electric fuel pump (within the VST) fail on these?